Messages on Android

I would like to turn off the following messages on my Android phone, an LG K4. (I don't mind being informed once, but there's no need to get these messages every time thereafter.) I've searched phone settings and haven't found where these can be turned off. From what I've researched, you need to root your phone in order to make these customizations. Before taking that route, is anyone aware of another way to do this?

When I turn on Mobile Data > "Connect to mobile network when Wi-Fi is unavailable. Mobile Network charges may apply."

When I turn off Mobile Data > "Unless you use Wi-Fi, you won't be able to use the Internet, Email or other apps that require a data connection. Turn off the mobile data connection?"

When I maximize the volume > "High volume for long periods may damage your hearing."

When I plug in aftermarket charger > "Slow charging. Use charger that came with your phone."

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This annoys me most, since I need the volume maximized on my phone while listening through the radio in my car. Every time I plug in the chord to the auxiliary port, it adjusts the volume down and shows this message:

"Media volume automatically lowered to protect your hearing."



If anyone has a solution to any of these, please share. Much appreciated -